The advances in computing and applications have contributed to migration of networking speeds from the 10 Megabits per second (Mbps) ubiquitous Ethernet networks to 100 Megabits per second (Mbps). In the 100 Mbps fornt-end networking arena, there are several competing standards vying for a reasonable share of the market, the chief amongst them being 100baseTX, 100baseT4 and 100VG-AnyLAN. This paper will provide a brief summary of each of the three competing standards, their applications, and topology.